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From Wolcott's "The Consorts and Children of Gruffudd ap Llewelyn": "Possible fi...
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From Wolcott's "The Consorts and Children of Gruffudd ap Llewelyn": "Possible first wife of Gruffudd ap Llewelyn, married shortly before his rise to power in Powys and Gwynedd": Nest, daughter of Olaf/Amlaib, son of Sitric Silkbeard, of Ireland.